28 lines
1019 B
Swift
28 lines
1019 B
Swift
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/// A message is invalidated when it needs to be re-rendered in the UI. Examples of when this happens include:
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///
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/// • When the sent or read status of a message is updated.
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/// • When an attachment is uploaded or downloaded.
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@objc public final class MessageInvalidator : NSObject {
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private static var invalidatedMessages: Set<String> = []
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@objc public static let shared = MessageInvalidator()
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private override init() { }
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@objc public static func invalidate(_ message: TSMessage, with transaction: YapDatabaseReadWriteTransaction) {
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guard let id = message.uniqueId else { return }
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invalidatedMessages.insert(id)
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message.touch(with: transaction)
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}
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@objc public static func isInvalidated(_ message: TSMessage) -> Bool {
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guard let id = message.uniqueId else { return false }
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return invalidatedMessages.contains(id)
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}
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@objc public static func markAsUpdated(_ id: String) {
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invalidatedMessages.remove(id)
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}
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}
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